Improvement in sash-locks



ilcita gaat JOHN HUGHES, OF NEW BERNE,v NORTH CAROLINA.

Letters Patent No. 109,516, dated November 22, 1870.

IMPROVEMENT IN vSASH-LOCKS.

n The Schedule referred to h1 these Letters Patent and making part of the same.

To all whom 'it may concern:

Be it known that I, J ons HUGHES, of New Berne, in the countyof Graven and State of North Carolina, have invented a new and valuable Improvement in Sash-Locks; and I do hereby declare that the following is a-full, clear, and lexact description of the conv struction and operation o f the same, reference being had to the annexed drawing making a part of' this specilication,and to theletters and ligures ot' reference marked thereon. v

Figure l of the drawing is a f'ront view ot` lny invention.

Figure 2 is a vertical cross-section of' the saine.

Figures 3, 4, and 5 are details.

My invention relates to a combined window-sash fastener andlock, and consists in the construction and novel arrangement of devices designed to hold the sashes in any desired position, and, if necessary, to

lock or secure them so that they. cannot be moved from their places either upward or downward.'

The letter A of the drawing represents the'lower sash of the window.`

B, the upper sash.

O. O represent the catches attached to the upper` and lower portions ot' the lower sash, at the side thereof.

'lhe uppcr catch C has its projecting ledge inclined slightly upward, in order that it may not fail to engage with the upper hook of the automatic latch when the sash is lowered. Y

For a similar reason, theprqiection ot the lower catch O is inclined downward. p

D r presents the automatic latch, pivote-d to the side o the window-frame.

This latch is provided-withtwo operating hooks d d', between whiclroccurs the dovetail recess The free vend-of the latch is extended in the ,opposite direction from -the hooks, forming a projection` or weight, f. l

The upper hookV d of the latch operates in connection with the upper catch C. and serves to keep the lower sash down its full distance.

The lower hook catches under the lower catch C', and serres to keep thelower sash up to its full height.

K represents ancccentric disk pivoted to the plate L, which is attached to the sash at any desired point.

`,'Ihe lower edge ofthe disk is recessed, and, to prevent the disk irom revolving beyond certain points, the pin n is secured to the plate L, and arranged to project up within the recess.

lhe upper wall z of the recess is inclined upward,

and inward, toward the sash, the angle of inclination being about the same as that ot' the lower hook -of the automaticlatch.

4under the recess in its lower edge.

That side of the upper halt' ofthe disk K which lies nearest the window-trame is inclined gradually from the plate L to the face ot' the disk, forming paths for the passage ot the lower end of the latch `D'up over the face ot' the disk. This inclination terminates abruptly at a vertical plane, passing through or parallel to the axial line ofthe disk.

The broad edge of the disk, immediately adjacent to i the inclined plane s,'is also inclined inward and downward at s', the inclination being about equal to that of theupper hook ot' the latch.

a represents asliding pin` passing through the disk near its periphery, and arranged to be inserted into the holes c' c in the plate L, thereby locking the disk in certain positions.

W hen it is desired to secure the lower sash in its highest or lowest position, the sash is simply raised or lowered, as the case may be, the weighted end of the automatic hook, causing it to become engaged with the catch C or C.

In order that this sash may be held at any intermediate height, the disk K is placed at a corresponding height from the top of the sash, and' the automatic latch will engage therewith, its lowerhook catching It may be 'held at any other point by raising the stop a, rotating the eccentriodsk suliicicntly to bring its full side against the window-jalnb. The eccentric may be locked in this position by depressing the stop a.

When the latch D is engaged'with the disk K, the

lower sash may be 'locked in position by turningthe disk sufficiently to bring the upper incline z of the disk into position-below the upper hook of the latch. The disk should be 4secured in this position by means of the piu d.

That I claim as my invention, and desire to secure by Letters Patent, is-

1. In combination, the catches O C' uponthe front face of the sash, andthe automatic double-acting latch 1),'having the hooks (I d', and pivoted tothe framey as specilied.

2. in combination, the automatic double-acting latch D, having the dovetail recess e, the platesL, having the holes c c', and the eccentric disk K, having the inclined places 5 z inits edge, and the locking-pin a.: In testimony that I claim the above, I have hereunto subscribed my name in the presence of two wit nesses.

- JNO. HUGHES.

Witnesses:

WM. Gno. Bumsen, HnrrRY R. BRYAN. 

